Typewriter desk



March so, 1943'. F. L. w. UNK 2,315,436 I TYPEWRITER DESK Filed Feb. 26,-1942 I AII\IVEI\JTOR I l FOREST L. 14./ Lnvx.

' ATTOR N EYS.

Patented Mar. 30, 1943 TYPEMRITER DESK Forest L. 'W. Link,- Silverton,Ohio, assignor to The Globe-Wernicke Company, Norwood, Ohio, acorporation of Ohio Application February-26, 1942, Serial No. :432,422

(Cl. B12-29) 3 Claims.

This invention relates to a typewriter `desk `and particularly to a deskof the pedestal type in which a typewriter shelf adapted to carry atypewriter is mounted lso that it may be concealed within a standardwidth pedestal from which it may be withdrawn for use. More particularlyit relates to a desk of the type in which there is mounted within thepedestal a drop leaf upon which the typewriter is mounted,land whichdrop leaf assembly may befslid in and out of v the f pedestal and is soarranged that the drop: leaf may not be raised until the drop leaf isfully withdrawn from the pedestal and whereby the the drop leaf assemblymay not be slid into the pedestal until it is in its fully loweredposition.

More particularly,r the invention is an improvement upon the structuredisclosed in my cepending application Serial No. 330,957 filed April 22,1940 and which issued July 14, 1942, as Patent No. 2,289,664. and of thedrop leaf assembly is quite fully described in said application, it willnot be described in detail herein except insofar as the presentstructure differs from the structure of said application.

The objects of my invention, which will fully appear from thespecification, I accomplish Vby that certain construction andarrangement of parts of which I shall now describe an exemplaryembodiment. Reference is'made to the drawing forming a part hereof andin which:

Figure 1 is a fragmentary front elevational view of a desk pedestalshowing the drop leaf withdrawn and in raised position.

Figure 2 is a view similar to Figure l but showing the drop leaf in itslowered position.

Figure 3 is a detail cross sectional view taken on the line 3-3 ofFigure 2 and on an enlarged scale.

Figure 4 is a detail cross sectional View taken on the line 4-4 ofFigure 2 on an enlarged scale.

Briefly in the practice of this invention, I provide means whichpreventthe pushing in of the drop leaf assembly until the drop leaf isin its lowerrnost position. This means is of such character that itcannot be actuated until the dropY leaf is -all the way down, and by anovel arrangement of parts I provide a very positive lock which isremoved at the very end of the downward movement of the drop leaf.

Referring more particularly to the drawing, the drop leaf is indicatedat il) and is hinged as at Il upon a traveling rail l2 which moves uponrollers I3 guided in channels I4, all as described Since the structureof the desk l Means are indicated at l5 for rocking the shelf.

in its raised position and this means'may be the same as that shown inmy Patent No. 2,239,664, issued July 14, 1942, although I do not desireto limit myself to any type of means forlocking the shelf in raisedposition since numerous other locking means known to the art will worksatisfactorily. Fixed to the carriage- !2 is a stop member l5, and fixedto the frame of the pedestal is a lug Il. The members it and Il arerelatively so positioned, as more clearly appears from Figure, that theycoact to limit the outward movement of the drop leafassembly. The loweredge of the drop -leaf (considering the same in its lowered position) isprovided with a -channel element i8 in which there is a cut-out portioni9. A bracket 20 is fastened to the pedestal frame and carries a roller2i rotatable on a Vertical axis. The opening I9 and the roller 2l arerelatively so positioned that they are clpposite each other when thedrop leaf assembly is in its fully withdrawn position. In this positionthe drop leaf may be raised'since the aperture I9 forms a clearance forthe roller 2|. As soon as the drop leaf assembly is slightly pushedinward, the roller 2i, of course, engages behind the arm lila of thechannel IS'and prevents .raising of the drop leaf. This structure isdescribed and claimed in my copending application above referred to.

In order to prevent the drop leaf assembly from being pushed inwardlyuntil the drop leaf is in its lowermost position, I provide a lockinglever indicated at 22 which is pivoted on the pedestal frame as at 23and which carries at its upper end the looking element 24. When themember 22 and with it the member 24 are Ymoved in a counterclockwisedirection by means of the small spring 25 vfastened at one end to thelever 22 and at the other end to the pedestal frame, as

clearly shown in Figure 3, the member 24 will project behind the memberi6 to prevent the assembly from being pushed inwardly.

Near its lower end the lever 22 carries a bracket. 26Y which carries aroller 21 rotatable on a vertical axis. The roller 2T is so positionedin a vertical direction that it is adapted t0 be in my above mentionedcopending application. 5o

abutted by the upper arm 18h of the channel i8 when the drop leaf isinits lowered position, as clearly shown in Figure 2. The roller 21 is sopositioned horizontally that the 4arm |81) will not abut it until thedrop leaf is substantially in a vertical plane, and by virtue of thelong lever arm 22 aV relatively slight motion toward the right of theroller 2l will produce a relatively 2 great movement toward the right ofthe locking element 24 and. will cause the same to move far enough tothe right to clear the abutment I6 and permit the drop leaf assembly tobe pushed in. It will be clear that as soon as the slightest upwardmovement is imparted to the drop leaf, the arm I8b will clear the roller21 whereupon the spring 25 will urge the lever` 22 toward the left sothat the locking element 24 will engage behind the abutment I6 andeffectively prevent the assembly from being pushed inward.

From the foregoing description it will be seen that I have provided avery simple structure and yet one which is highly effective. Upon properpositioning of their various parts as discussed herein, the lockingarrangement is quite positive and thus a typewriter mounted upon thedrop leaf will not become injured by virtue of movement in any directionof the drop leaf since it can only be raised or lowered when it is fullywithdrawn and it can only be withdrawn or pushed in when it is fullylowered.

- Having now fully described my invention, what I claim as new anddesire to secure by Letters Patent is:

l. In combination with a desk pedestal and a typewriter shelf slidablyand hingedly mounted on a wall in said pedestal, means to prevent inwardmovement of said shelf except when said shelf is in a substantiallyvertical position, said means comprising an abutment in connection withsaid shelf, and a locking lever pivoted on said pedestal and carryingmeans for cooperating with said abutment to prevent inward movement,

and means acting upon said locking lever to shift the cooperating meansto an inoperative position when said shelf substantially attainsvertical position.

2. In combination with a desk pedestal and a typewriter shelf slidablyand hingedly mounted on a wall of said pedestal, and slidable to aposition outside of the pedestal, means for preventing said shelf frombeing pushed in except when in a substantially vertical position,comprising a lever pivoted on said pedestal engageable intermediate ofits length by said shelf when said shelf substantially attains verticalposition, said lever when unengaged by said shelf cooperating with anabutment which prevents inward movement of said shelf.

3. In combination with a desk pedestal and a typewriter shelf slidablyand hingedly mounted on a wall of said pedestal, and slidable to aposition outside of the pedestal, means for preventing said shelf frombeing pushed in except when in a substantially vertical position,comprising a lever pivoted to said pedestal, said lever carrying abracket intermediate its length, a roller mounted on said bracket forrotation about a substantially vertical axis, said roller beingpositioned to be abutted by said shelf substantially upon attainment ofa vertical position of said shelf, means at the end of said levercooperating with an abutment to prevent the inward movement of saidshelf, and resilient means urging said lever to shelfmovement-preventing position.

FOREST L. W'. LINK.

